Mountains to Sound Greenway Trail

Project Summary

Near the end of September 2019, IMCO started construction on the first phase of the Mountains to Sound Greenway Trail from I-405 to 132nd Avenue SE in Bellevue, Washington. This contract will improve safety for pedestrians and bicyclists in the area. IMCO crews will construct a 12-foot pedestrian and bicycle path, a pedestrian and bicycle bridge over Factoria Boulevard, a tunnel under the existing I-405 eastbound I-90 ramps, and an additional lane for the I-90 eastbound off-ramp to Factoria Boulevard.

This project is expected to be complete by the end of 2020.



Bellevue, WA


City of Bellevue

Contract Amount

$18 million


2019 - 2020

Anticipated Completion

December 2020